🌸 -10% discount as a welcome offer from 50€ of purchase (cumulative with promotions), + discounts offered to professionals and for group purchases, contact us to find out more!
📐 💎 Dimensions: 123 millimeters long x 100 wide x 23 thick
⚖️ Weight: 337 grams
✨ Finish: Polished
🔬 Treatment: None
🎁 Comes with a Gem and Zen certificate, ideal for giving as a gift or treating yourself!
🌍Please note:
The spiral shape of the ammonite is a symbol of cycle, evolution and rebirth, which resonates with deep and introspective signs.
Age : Ammonites lived between approximately 400 and 65 million years ago.
Ammonites (or Ammonoidea) are an extinct subgroup of cephalopod mollusks . They populated the world's oceans and seas .
They were characterized by a more or less coiled univalve shell of which only the last chamber was occupied by the animal, the other chambers serving to control its flotation.
During the Devonian , they appear in the fossil record, but they disappear after the Cretaceous–Paleocene crisis .
📋 Mineralogical sheet:
Appearance
Ammonite Fossil
Category
Fossil / Marine cephalopod (mollusk)
Geological age
From 240 to 65 million years ago (Mesozoic)
Chemical composition
Mainly aragonite (CaCO₃), sometimes replaced by calcite, pyrite or silica during fossilization
Crystal system
Orthorhombic (Aragonite)
Hardness (Mohs)
3.5 – 4
Density
2.6 – 2.9
Color
Beige, brown, black, gray, sometimes iridescent (ammolite)
Glow
Matte to pearly, sometimes iridescent
Transparency
Opaque
Special feature
Spiral shell-shaped fossil, symbol of evolution and continuity
Main deposits
Madagascar, Canada, Morocco, England
Discovery / History
Ammonites are extinct marine mollusks; used as reference fossils to date rocks
When you shop at Gem & Zen, part of your money goes to Nepal's artisans from the 'Help in Action' association. We value sustainable and responsible entrepreneurship, which we express, among other things, by making our business processes more sustainable. We therefore donate a percentage of our annual profits to charitable organizations.
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